Valve mechanism



July s, 1924. 1,501,022

C. GIBFORD v-ALVE MECHANISM Filed July 28. 1921 fbi?? Y me/nto@ fv 61m@6ft-yad,

' @35% Mmc/omega Patented July 8, 11924;.

Aralar CHARLES etero-ran, orronrrnc, momenti, nssrenoamo entrenan moronscoa- Ponn'rroiv, or DETROIT, MICHIGAN, n oonronafron or DELAWARE.

VALVE MnoHnivIsM.

VAppncanw filed July 2s, 1921. serial no. 425,225. i

'- invention relates tomake and use the same,

reference being made therein to /theaccompanying drawings, which form apartof this specification. f Y

"llhe inventionrelates Vto valve mechanism,

and while-in some .respects'of more general applicatiom'it has Vbeen.designed with particular rreference to use in Vconnection with an airheater of the typeue'mployed'in sup'-V plying heated "air to favcarbureter of an internal combustion eng-ine.V l

The 'nventionrhas for it-sf principal object the provision' of yanimproved Y valve mechanism capable ofV being easily and.

-, improved handle and locking `device whereb14 i suitable-bendingcheaply manufactured and assembled and y being leasy, of j adjustmentand eflicient in? operation. l n Y j A further'object is the provisionof a valve structure comprising -in a single `piece a valve memberproper-anda `spindle or shaft ltherefor, the 4whole being'formed bysheet metal blanl.` A

vA Vfurther object is tliev-provision" of an the valve spindle may berotatedV and 'whereby itmaybe retained.inthexdesiredpositionsofadjustment.- 1

Further objectsand advantages will appear from the followingdescriptiontakeir in connection with the accompanying drawings, inwhich- Fig. 1 is a side elevation of an internal combustion engineshowing in connection therewith one embodiment of my invention; Fig. 2is a cross section on line 2-2 of Fig. 1;

Fig. 3 is an elevation of the air conduit shown in Fig. ltaken from theright end;

Fig. 4 is a plan view and Fig. 5 an end elevation of the valve member;

Fig. 6 is a plan view of the blank from which the valve member isformed; and

Fig. 7 is a plan view of the combined handle and locking device appliedto a slightly different form of valve member.l

operations from a Vunitary Referring to the drawings, 10 indicates aninternal combustion engine includlngV the intake manifold 11, an exhaustmanifold V12, and carbureter 13. A heating device,

ordinarily termed a stove, is provided for heating the air supplied tothe carbureter intake 14which stove may comprise,v asY shown, a. jacketor belll surroundingy a part of theexhaust manifold and connected by abranched conduit 16 to the air intake '14, one branch of the conduitopening directly to the air, as at 17 .i A valve .member of suitableform, as the butterfly valve 18, is pivotally mounted, as at 19, insuchposition thatrbyrotation or oscillation of the valve 1 itmaybeposition'ed either to' close the opening of the conduit 17 or thebranch leading to, theheating jacket 15. The valve therefore provides ameanswhereby heated air may be supplied to the carbureter or the air maybe taken directly from the exterior lwithout preheating.y

The valvemechanism with which invention is more directlyconcernedcomprises a valve memberzproper as shown at Y18` and a spindle or shafttherefor Aindicated at 20. I form the valve preferably by bending`operations from a sheet metal blank of the form illustrated in Fig. 6comprisinga shaft portion 20 of suitable dimensions to ,pro`v-ide,`whenbent to tubular form, thespin'dle20 and an extension-18 of suitablefoijm to close thepassage with whichV the valve may be associated. Y Itwill be noted that the shaft ,portion 20 has projecting portionsextending in-both directions be- -yondgthe portion 18', as aty 21',22',v which extensions, `when the shaft ortion is bent to tubular form,serve as journals 21, 22 adapted to seat within vsuitable apertures inVthe walls of ak conduit to provide pivotal support for the valve member.

In order to rotate the valve, I provide a handle 23 formed preferablyfrom resilient material, as from spring wire. One end of the handle maybe formedv with a loop V24g having a hooked end 25, the other end beingprovided with aV suitably shaped portion, asa loop 26, whereby thehandle may be seized and the valve rotated to the desired positions ofadjustment. A slot 27 is provided in one side of the journal portion `22throughwhich the handle 23 may be journal 22 with the hook 25 engagingthe end of the slot to thereby` prevent displacement of the handle. Anaperture 28 is formed in the 'journal portion 22 opposite the slot 27,which aperture maybe con-` stitutedby two notches 28 in the mating edgesof the blank portion 22 and through which aperture the handle23`extends. The handle will be made preferably of such length as toextend outwardly over the curved surface of the conduit with which thevalve is associatedv and will be bent in suc-h manner as to contactresilientlywith such conduit. The frictional engagement of the handlewith the walls of the conduit will therefore tend to retain the valve inthe desired positions of adjustment, particularly if, as illustrated inFig. l, the shape of theconduit is such that the tendency of the handleto slide downwardly over the curved surface of theconduit will cause thevalve member tov move toward its. closed position at the respectiveextremesof its movement. l By merely grasping the loop 26,

however, the handle may be readily bent away7 from the seated positionagainst the conduit and the valve may then be rotated to theV oppositeeXtreme of its movement, where it will be resiliently reta-ined uponreleasing the handle. l

lli/'here a valve of the form illustrated in Fig. 7 is employed,comprising a valve member 29"secured to a spindle 30 as by screws31,'the spring handle 23 may be attachedV tothe spindle by ,theprovision of a loop 2li lying in a plane at right angles to the plane ofthe loop 26 and secured to the spindle 30 as by clamping it between thenuts 31. The operation in this case will'be the same as that alreadydescribed, in that the resilient portion of the handle 23 enn gaging thewalls of the conduit with which the valve is associatedwilltendto retainthe valve resiliently" in yitsy exteremeV posi.- tions. v

Various other changes may be made k,in details of construction andoperation without departing from ythe spirit and scope of the inventionand therefore l do not wish tov be. limited to the specific struetureherein set forth except as required by the language of the appendedclaims in view of the prior art. Y i

Y'I claim: Y

i. In valve mechanism, the combination of a conduit having curved walls,a valve therein having two, eXtreme positions of adjustment, and aresilient handle for said valve shaped to engage said curved Walls andthereby retain the valve in either of its positions.

2. In valve mechanism, the combination of a branched conduit, a valvepivoted in said conduit in position toclose either of itsbranches, ahandle comprising'aresilient wire connected to said valve, said handleshaped to engage opposite sides of said conduit when the valve is in itsArespective positions and adapted, by engagement with the conduit, toforce the valve resiliently to its extreme positions.

3,. Invalve mechanism, the combination with a valve member comprising aflowobstructing portion anda spindlel portion formed from a Vsinglepiece of sheet material, said spindle portion havingaperturestherethrough, of a handlemember comprising a resilient device seated insaid apertures.

Ll. rlhe combination with a member to be rotated comprising a spindleformed by bending sheet material into tubular form, said spindle havingapertures upon -opposite sides thereof, of a handle comprising aresilient wire bent to form to pass through said apertures and beretained therein.

45. In valve mechanism, a valve member mountedy for pivotal movementaboutone edge thereof, said member comprising a 'body portion and ayshaft portion formed from'a blank of sheet materiahthe shaft portionbeing constituted by a part, ofy the bla-nk extendngbeyendthe bedrDertien in the direction1 of the'pivoty and ,bent tov form a spindle. y

In testimony whereof ath; my signature. CHARLES 4Grll3l3`C)l:D.

